Homework 4: Dynamic Dispatch and Dynamic Types
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چکیده
We’ll write τabs for the type inside the existential. The function new takes a class name and instance data for that class and constructs an object, while the function send takes an object and a method name and produces an element of the method’s result type. Given a dispatch matrix edm : τdm, there are two natural ways of implementing ∃tobj.τabs. The first, which is analogous to the traditional “abstract data type”-based organization, implements tobj as a sum over class names of instance data. τ obj , ∑
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Homework 4: Dynamic Dispatch and Dynamic Types
We’ll write τabs for the type inside the existential. The function new takes a class name and instance data for that class and constructs an object, while the function send takes an object and a method name and produces an element of the method’s result type. Given a dispatch matrix edm : τdm, there are two natural ways of implementing ∃tobj.τabs. The first, which is analogous to the traditiona...
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